A.is a deck fitting used to shackle gear to the deck
B.permits easy jettisoning of deck cargo in an emergency
C.prevents stress concentration in the bulwark
D.provides openings through the bulwark for mooring lines
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A.must be wet before it will release
B.should be kept in a watertight cover except in an emergency
C.will inflate the raft in its cradle if operated manually
D.must be submerged to a certain depth to release automatically
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The limit switches on a ships survival-craft winch system（）.
Signaling devices required on inflatable liferafts include a(n) （）.
Prior to boarding from a vessel，a davit-launched liferaft should be well ventilated of excess（）.
Inflatable liferafts shall be serviced at an approved servicing facility every 12 months or not later than the next vessel inspection for certification. However，the total elapsed time between servicing cannot exceed（）.
If an inflatable liferaft is overturned，it may be righted by（）.
Inflatable liferafts are provided with（）.
The air spaces in the floor of an inflatable liferaft will provide protection against（）.
Signaling devices which are required on inflatable liferafts include（）.
To inflate a davit launched liferaft you（）.
Personnel boarding a davit-launched liferaft from a ship should be checked to assure they are not in possession of or wearing（）.